Cap for pens



Aug. 1s, 1925. 1,550,599

s. WALKER CAP FOR 'PENS Filed ugr 15. 192s wmv/ rss Es: 20 f' /A/ vf/v roR i Patented Aug. 18, 1925.-

UNITED STATES Asaumur. WALKER, or Naw Iironic', N. Y.y

car' ron. rms.

Application led August 13, 1923. `Serial No. 657,128.

To all whom it may concern.'

ABe it known that I, SAMUEL WALKER, a citizen of the United States, and a resident of the city of New York, borou h of Queens, in the county of Queens and tate of New York, have invented a new and Improved Cap for Pens, of which the following is a full, clear, and exact description.

This invention has relation to covers for pens and has particular reference to an improvement in caps which are especially designed for use in connection with fountain ens.

At the present time fountain pen nibs are covered by a cap which is either frictionally or threadedly fitted over the nib end of the -1 barrel and necessitates the entire removal of the same from the barrel and its placement on the opposite end when it is desired to expose the nib for use.

To overcome the above recited objections and disadvantages, it is therefore the principal object of the present invention to provide a cap for fountain pens which cap is axially slidable on the nib end of the barrel, whereby the same may be retracted or moved 'upwardly on the barrel to expose the nib for use, thus eliminating the necessity'7 of entirely removing the cap. A V

As a further object the invention contemplates a cap for fountain pens which is -o'f` tubular formation and telescopicall ar- -ranged over the nib end of theV barre Vthe said' tubular body being provided with 'means for normally 'closing the outer end,

which means upon inward telescopic movement of the tubular body over the barrel effects an automatic opening thereof to expose the nib for use and which meansupon outward telescopic movement is automatically closed to cover the nib.

As a still further 'object the invention contemplates in combination with a cap of the character setl forth, means for retaining the cap respectively in its covering or uncovering positions, against accidental displacement.

Another object in view is to provide a cap of the character set forth'which is radially contractible, whereby the same is capable of y' use in connection with pen barrels of various diameters.

The invention furthermore contemplates a cap of the character set forth, which is p extremely simple in its construction, inexpensive to manufacture and produce and fully extent indicated by the general meaning of the terms in which the claims are expressed.

In the drawings- F igure1 is a longitudinal sectional view through a cap constructed in accordance with the invention, the same being taken approximately on the line indicated at 1-1 in Fig. 3, and illustrating the same yapplied and in nib covering position.

'Fig'. 2 is a similar view with the cap moved to a position for uncovering the nib.

Fig. 3 is a plan view.

Fig. 4 is a transverse sectional view through the cap taken approximately on t-he line 4-4 of Fig. 1.

Fig. 5 is a plan view of the blank from which the cap is constructed prior to the bending of the same. into. finished shape.

Referring to the vdrawings by characters of reference, Adesignates the barrel of a fountain pen and B the nib. The cap or cover for the nib which constitutes the invention consists of 'a tubular split resilient body 10 and ends 11 and 12 of which are overlapped. The said tubular body due to its in erent resiliency normally tends to retract radially on the barrel'of the pen when applied thereto whereby the same is capable of fitting barrels of various diameters. At its inner end the tubular body 10 is 'open to'slidabl or telescopically fit over the nib end of t e pen barrel A. At its outer end the tubular body 10 has connected thereto a'pair of semi-conical sections 13 and 14 by a means of resilient connecting portions 15 and 1 6 which operate to advance and retain the sections 13 and 14 .in mating relation for closing the outer end of the body 10 when the said body is moved axially outward on the nib end of the barrel a sufficient distance to allow the sections 13 and 14 to clear the point of the nib B. In the referred embodiment of the-invention as illustrated the tubular body 10, the semiconical sections 13 and 14 and the connecting Vprtions 15 and 16 mare integral and are stamped and bent from a single sheet `or material, the blank of which is illustrated in Figure 5. In order. to form the device blank lis slit outwardlyfand at an opposite angle as at 22. Adjacent 'terminals of the` slits 21 and 22 communicate with the longitudinal parallel slits 23 which forni the resilient connected portions 15 and 16. The slits 21 and 22 together with the V-shaped cutoutHportion .18' and the inclined side edges 17 define the material for forming the semi-conical sections 13 and 14, while the remainder of the'blank constitutes the material for forming the tubular split body 10. The body 10 is Aformed witlran outwardly pressed circumferential bead 24 which defines ,on the inner side ofthe body an annular groove or recess 25. The pen barrel A is provided with outwardly projecting teats 26 and 27 longitudinally spaced thereon for cooperation with the annular. groove or recess 25 to retain the tubular body 10 in axially shifted1 position.'I

In use and 'operation' of the device, when -thebod .A is'shifted axially outward to a -point w y ere the semi-conical sections 13 andv 14 clear therpoint'of :the nib B as illustrated in Figure 1, the "inherentresiliency oi" springiness of the connecting' portions 15 and'16operate to advance and retain said sections in close relation whereby the nib is covered and housed when the pen-is not in use. In this position the anulargroove or'recess 25 engages over or receives the teat 26 -to retain the 'capin' this position. When itis desired' to use the pen the nib B is exposed by axially shifting the tubular body 10 of the cap inwardl The inward shifting movement causes t e relative separation 0f the sections 13l and 14 by engagement of the nib therewith and as the tubular body is retracted or moved radially inward,- on the pen barrel A the annular groove or recess 25 finally engages orareceives the inner teat 27 with the sections 13 and 14 wholly rertracted fromthe nib end of the pen, as

illustrated in Figure 2. .-.A ,reverse outward movement effects the automatic' closurebf ,the sections 13 and 14' as will be clearly understood. f' z-` It will thus be seen lthat an extremely simple and inexpensive .closure cap for .pens. has been provided which eliminates the ne-fv nib for use.

I claim: g 1. A cap for the nib end of pens formed of a single piece of material bent to form a tubular body portion with its edges in over"- cessity of removing the `cap to expose'the" lapped relation and provdedtoneiend p i Sections con- A nected witlrthe body: by resi fier-nt .pgrons with semi-conical nib enclosin struck up from the body and sections, the portions of the bodye-and sections ,at-eachside of the resilient connecting@A portions s.

bein inclined and lfitting v against one anot ier. v l.

2. A blank for formation intoa' pen cap, having 'the corners of ,one y end; cutaway iat an angle, the intermediatel portionofisaid end having a V-shapednotclnthe apexfofwhich is disposed inwardly and in transverse -alinem'ent with theiliner end oft the cut away corners, said blfank `having pairs o`f spaced v longitudinal parallelslitsj and pairs g of .transverse parallel slyits, the latter slits -extending respectivelyV between theV apex and -the innermost slitof each pair of longitu- :dinal slits, and between'the outermost slit [of each longitudinal pair and the inner ends e SAMUEL WLKER. l 

